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How much can I borrow on a guarantor mortgage

Find out how much you can borrow on a guarantor mortgage

No impact on credit score

Pete Mugleston

Author: Pete Mugleston - Mortgage Advisor, MD

Updated: August 9, 2021
Guarantor Calculator
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How guarantor mortgage affordability works:

The whole process of applying and qualifying for a guarantor mortgage is often not as straightforward as many like it to be. Although the guarantor isn’t actually on the mortgage deeds and doesn’t own the property, the guarantor is still assessed in the same way as an applicant (credit score, income, age, other commitments such as mortgages, credit cards, loans etc).

In order to work out how much the guarantor can afford, lenders look at both the income and outgoings of the guarantor. Currently in the UK, guarantor income is assessed on employment basic income, overtime, bonuses, and self-employment income (usually 2-3 years trading is required as a minimum). At present, if you wanted an estimate of the maximum available borrowing on a guarantor mortgage, UK lenders tend to multiply the income by 4 (e.g. A salary of £30,000 pa would elicit a maximum lend of approximately £120,000). There are however, some lenders that can lend up to 5x income. The borrowers personal income usually isn’t included in any calculations.

The mortgage term (length of the mortgage in years), is usually limited to the guarantor’s circumstances because more often than not, the guarantor is older than the main borrower. Most lenders will restrict the mortgage term to the oldest applicants retirement age (say, 65), and therefore in some cases when a 25 year old couple want a 40 year mortgage but their guarantor is 40, they have to limit it to 25 years to fit in with the guarantors retirement age. Consequently, shortening the term by a significant number of years can make the monthly payments much more costly every month.

However, there are a few lenders that understand this problem and will allow the full mortgage term applied for, as long as the guarantor is removed within a certain amount of years, for example. Bear in mind that some lenders will cap guarantor mortgage terms to 25/30 years regardless of age, so this must be factored in when considering your monthly budget.

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Borrowers sometimes don’t need ANY income:

A major benefit to having a mortgage with guarantor is that in some cases, the borrower doesn’t need to prove ANY income at all. This can help people like the newly self-employed, university students, or even the unemployed to get on the property ladder. Mortgages with guarantor arrangements are becoming increasingly accessible for first time buyers or home movers upsizing to a bigger property, as lenders start to push back into the market they retreated from 4 or 5 years ago. Which mortgage is right for you will depend on a number of factors, so make an enquiry and one of the experts can find you the best guarantor mortgages 2014 has to offer. Make an enquiry now…


If you want to apply for a mortgage with a guarantor, maybe you want to know if you’re eligible or you’re looking for the best deals, please get in touch and one of the experts will be in touch ASAP. If you require help immediate assistance please call 0808 189 2301.

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About the author

Pete, an expert in all things mortgages, cut his teeth right in the middle of the credit crunch. With plenty of people needing help and few mortgage providers lending, Pete found great success in going the extra mile to find mortgages for people whom many others considered lost causes. The experience he gained, coupled with his love of helping people reach their goals, led him to establish Online Mortgage Advisor, with one clear vision – to help as many customers as possible get the right advice, regardless of need or background.

Pete’s presence in the industry as the ‘go-to’ for specialist finance continues to grow, and he is regularly cited in and writes for both local and national press, as well as trade publications, with a regular column in Mortgage Introducer and being the exclusive mortgage expert for LOVEMoney. Pete also writes for OMA of course!

Read more about Pete

Pete Mugleston

Mortgage Advisor, MD

FCA disclaimer

*Based on our research, the content contained in this article is accurate as of the most recent time of writing. Lender criteria and policies change regularly so speak to one of the advisors we work with to confirm the most accurate up to date information. The information on the site is not tailored advice to each individual reader, and as such does not constitute financial advice. All advisors working with us are fully qualified to provide mortgage advice and work only for firms who are authorised and regulated by the Financial Conduct Authority. They will offer any advice specific to you and your needs.

Some types of buy to let mortgages are not regulated by the FCA. Think carefully before securing other debts against your home. As a mortgage is secured against your home, it may be repossessed if you do not keep up with repayments on your mortgage. Equity released from your home will also be secured against it.

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